我在CS50和我的继承人greedy.c为什么我会收到这些语法错误消息?
#include <cs50.h>
#include <stdio.h>
int main (void)
{
int cents[1000];
int used[1000];
used = 0;
printf("How much change is due? (Don't use symbols ex: 0.45)\n");
scanf("%d", cents);
if (cents < 0) {
printf("Please use positve numbers only \n");
scanf("%d", cents);
};
while (cents >= 0.25) {
cents -= 0.25;
used+1;
};
while (cents >= 0.10) {
cents -= 0.10;
used+1;
};
while (cents >= 0.05) {
cents -= 0.05;
used+1;
};
while (cents >= 0.01) {
cents -= 0.01;
used+1;
};
printf("%d", used);
}
有人可以解释为什么它不工作?我不断收到此错误信息:
greedy.c:8:7: error: incompatible types when assigning to type ‘int[1000]’ from type ‘int’
used = 0;
^
greedy.c:15:15: error: invalid operands to binary >= (have ‘int *’ and ‘double’)
while (cents >= 0.25) {
^
greedy.c:16:9: error: invalid operands to binary - (have ‘int[1000]’ and ‘double’)
cents -= 0.25;
^
greedy.c:19:15: error: invalid operands to binary >= (have ‘int *’ and ‘double’)
while (cents >= 0.10) {
^
greedy.c:20:9: error: invalid operands to binary - (have ‘int[1000]’ and ‘double’)
cents -= 0.10;
^
greedy.c:23:15: error: invalid operands to binary >= (have ‘int *’ and ‘double’)
while (cents >= 0.05) {
^
greedy.c:24:9: error: invalid operands to binary - (have ‘int[1000]’ and ‘double’)
cents -= 0.05;
^
greedy.c:27:15: error: invalid operands to binary >= (have ‘int *’ and ‘double’)
while (cents >= 0.01) {
^
greedy.c:28:9: error: invalid operands to binary - (have ‘int[1000]’ and ‘double’)
cents -= 0.01;
^
greedy.c:31:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int *’ [-Wformat=]
printf("%d", used);
^
make: *** [greedy] Error 1
编辑:好了,感谢@Digital_Reality我得到了它的编译,但现在如果我直通1.25我得到了我们用1枚硬币,如果我穿过1000.00其说,我们使用1000硬币有没有人知道一个修复?
您定义'cents'和'used'为数组,但把它们作为单一值。哪一个? – Joe
你真的不需要'cents'和'used'是1000个元素的数组,是吗?如果您的印象是“int cents [1000];'将最大值为1000的整数声明为'cents',请重新阅读您的教科书。 –
好吧,我摆脱了1000,它仍然无法工作@凯瑟汤普森 – mrnatbus12